2151350521361 has 2 divisors, whose sum is σ = 2151350521362. Its totient is φ = 2151350521360.

The previous prime is 2151350521321. The next prime is 2151350521367. The reversal of 2151350521361 is 1631250531512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1175394232336 + 975956289025 = 1084156^2 + 987905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151350521361 - 2⁶ = 2151350521297 is a prime.

It is not a weakly prime, because it can be changed into another prime (2151350521367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075675260680 + 1075675260681.

It is an arithmetic number, because the mean of its divisors is an integer number (1075675260681).

Almost surely, 2^{2151350521361} is an apocalyptic number.

It is an amenable number.

2151350521361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151350521361 is an equidigital number, since it uses as much as digits as its factorization.

2151350521361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 2151350521361 in words is "two trillion, one hundred fifty-one billion, three hundred fifty million, five hundred twenty-one thousand, three hundred sixty-one".